Thiago F. Pappacena has proposed merging ~pappacena/launchpad:merge-db-stable into launchpad:master.
Commit message: Merge db-stable 6d412dafb1959d2eef85de03c10e924666d2fa51 (MessageRevision and MessageRevisionChunk tables, and adding columns for last edit and delete date on Message) Requested reviews: Thiago F. Pappacena (pappacena) For more details, see: https://code.launchpad.net/~pappacena/launchpad/+git/launchpad/+merge/403066 -- Your team Launchpad code reviewers is subscribed to branch ~pappacena/launchpad:merge-db-stable.
diff --git a/database/schema/patch-2210-31-0.sql b/database/schema/patch-2210-31-0.sql new file mode 100644 index 0000000..8c11aac --- /dev/null +++ b/database/schema/patch-2210-31-0.sql @@ -0,0 +1,50 @@ +-- Copyright 2021 Canonical Ltd. This software is licensed under the +-- GNU Affero General Public License version 3 (see the file LICENSE). + +SET client_min_messages=ERROR; + +ALTER TABLE Message + ADD COLUMN date_deleted timestamp without time zone, + ADD COLUMN date_last_edited timestamp without time zone; + +CREATE TABLE MessageRevision ( + id serial PRIMARY KEY, + message integer NOT NULL REFERENCES Message, + revision integer NOT NULL, + subject text, + date_created timestamp without time zone NOT NULL, + date_deleted timestamp without time zone +) WITH (fillfactor='100'); + +CREATE UNIQUE INDEX messagerevision__message__revision__key + ON MessageRevision(message, revision); + +COMMENT ON TABLE MessageRevision IS 'Old versions of an edited Message'; +COMMENT ON COLUMN MessageRevision.message + IS 'The current message of this revision'; +COMMENT ON COLUMN MessageRevision.revision + IS 'The revision monotonic increasing number'; +COMMENT ON COLUMN MessageRevision.date_created + IS 'When the original message was edited and created this revision'; +COMMENT ON COLUMN MessageRevision.date_deleted + IS 'If this revision was deleted, when did that happen'; + + +CREATE TABLE MessageRevisionChunk ( + id serial PRIMARY KEY, + messagerevision integer NOT NULL REFERENCES MessageRevision, + sequence integer NOT NULL, + content text NOT NULL +) WITH (fillfactor='100'); + +CREATE UNIQUE INDEX messagerevisionchunk__messagerevision__sequence__key + ON MessageRevisionChunk(messagerevision, sequence); + +COMMENT ON TABLE MessageRevisionChunk + IS 'Old chunks of a message when a revision was created for it'; +COMMENT ON COLUMN MessageRevisionChunk.sequence + IS 'Order of this particular chunk'; +COMMENT ON COLUMN MessageRevisionChunk.content + IS 'Text content for this chunk of the message.'; + +INSERT INTO LaunchpadDatabaseRevision VALUES (2210, 31, 0);
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